\usepackage{paracol}

\usepackage[explicit]{titlesec}

\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries}{#1}{10pt}{\Huge}
%\titleformat{name=\chapter,numberless}[display]
%  {\normalfont\huge\bfseries}{}{0pt}{\Huge}
\titlespacing*{\chapter}{0pt}{50pt}{*2}


\renewcommand{\thepart}{}
\renewcommand{\thechapter}{}
\renewcommand{\thesection}{\Roman{section}}

%\renewcommand{\chaptername}{aasdas}
%\renewcommand{\chaptermark}[1]{\markboth{#1}{}}

\renewcommand{\chaptermark}[1]{\markboth{#1}{#1}}
%\renewcommand{\sectionmark}[1]{\markboth{#1}{}}


\newcommand{\bPart}[2]
{    
	\begin{otherlanguage}{russian}
	\part{#1 / #2}
	\end{otherlanguage}
}

\newcommand{\bNewStory}[2]
{    
	%\phantomsection % for displaying bookmarks in pdf 
	\begin{otherlanguage}{russian}
	\chapter{#1 / #2}
	\end{otherlanguage}
}
 
\newcommand{\bNewChapter}
{
	%\clearpage when starting a new section the last previous page is lost
	\section{}
}

\newcommand{\bLeftColumn}
{
	\begin{paracol}{2}
	\begin{otherlanguage}{russian}	
	
	%\raggedleft						% when using very small pages and big fonts (for reading at Nokia E63) boxes don't get hyphenated properly, so include this
}

\newcommand{\bRightColumn}
{
	\end{otherlanguage}
	\switchcolumn
	%\raggedright
}

\newcommand{\bCloseColumn}
{
	\end{paracol}
}

